Insulating wrapper



31, 1929. e. B. SCAR LETT 7 msum'rms WRAPPER Filed July 27. 1928 2 Sheets-Sheet 2 Patented Dec. 31, 1929 "UNITED STA GEORGE B. SGARLETT, or KENNETH. SQUARE, P'nivnsYLvAn'IA; Assrenoa TO THE GLAC- IFER CORPORATION, or KENNE'rrsQUARE; PE1\TNSYLVANTA, A cortroim'rronor DELAWARE Application filed July 27,

The main object of this invention. is to pro- ,V'ide an insulating and protective wrapper that can be produced at low cost for one time i use, that can be packed in flatform to conserve spaceand for convenience in handling, that does not requiregreat skill in the manipulation and handling thereof to enable; the user to properly roll and fold up the wrapper around and enclosing a dry refrigerant unit or units andthe article or articles to becarried and refrigerated by such unit or units for a substantial length of time; and that vcan be utilized to wrap up and enclose containers of ice cream and other chilled or frozen products to form a simple, improved and advantageous carry home package for.

in novel combinations, as more fully and.

particularly described and specified hereinafter. i

Referring to the accompanying drawings, forming part hereof Fig. 1 shows 1n top plan an embodiment of the wrapper of my invention, in flat formand top, dotted lines indicatinga container and refrigerating units located on the wrapper preparatory to initiating the wrapping'operationi 1 Fig. 2 shows the wrapper of Fig. 1 in edge elevation with certain portions thereof swung up to show the manner of hinging or loosely connecting the same to the main outer wrapper, the article to be wrapped being shown in full lines.

Fig. 3, is a top plan showing the initial step i in the wrapping operation, the article to be wrapped and. the refrigerating units being indicated by dotted lines. I I 1 Fig. lisa top plan showing the step in the wrapping operation following that of Fig. 3. I i Fig. 5 is a detail section taken in the of the line 5-5, Fig. 3.

Fig. 6 is a top plan showing thewrapper when the wrapping operation has been almost completed.

plane 4 INSULATING WRAPPER 1928.. Serial no. 295,816.

. Fig. 7 is Fig'.,8 is a perspective showing the. completed, bundle composed of the container and refrigerating ,material enclosed .within the rolled enclosing wrapper. Fig. 9 isa detail perspective on an, enlarged scale, of portions of the main outside sheet and the thick soft insulating pador blanket, a corner of one of the facing. sheets of said pad beingturnedup to show the waterproofing and adhesivecoating on the inner surface thereof. v

v The example illustrated of what I now believe to be the preferred mechanical expression orembodiment of the invention, embodies a strong preferably-waterproof outside main wrapping sheetl, of fibrous mate-' rial, such as suitably treated heavy sheet .paper, that is elongated both as to'length and .width; a relatively short and narrow pliable or flexible thick soft or cushioning insulating pad or blanket 2, loosely resting on. or contacting the inner surface of the central or intermediate portion of the main outside sheet 1, and movable with respect. thereto or separate'and disconnected therefrom exce t as hereinafter pointed out; and a relative y short and narrow interior preferably stiff heavy paper ,or other fibrous sheet 3,:res'ting on the inner end of the main wrapping sheet and at its inner end secured, at 3 to the inner end of the main'wrappingsheet, and at its opposite endextending over the pad 2, and

intermediate its length,secured in any 'suit-- able manner, to the inner end portion of said pad as by staples S extending transversely through sheet 3, and pad'2.

The main strong outside'sheet 1 isof a volutions surrounding the article or articles enclosed thereby. Thissheet 1, is in'width a detail section on the line 7.7,

length to form several overlying spiral confar in excess of the length of the article or articles to be enclosed when arranged transversely thereof'and approximately'midway 1 betweenthe longitudinal edges of said sheet.

The preferably stiff heavy article-contacting paper or other flexible short narrow inner sheet 3, is at its inner end permanently secured-by adhesiveor otherwise to the inner end of the main sheet at 3, so as to overlie the same. This inner sheet is preferably at least as wide as the length of the article or articles to be enclosed when arranged transversely thereon, and this inner sheet is preferably long enough to spirally wrap at least once around the articles to be enclosed with the sheet ends overlapping.

This inner sheet 3, is arranged longitudinally and centrally of and on the inner end portion of the main sheet to which it is preferably secured at its inner end only.

The heavy flexible insulating pad 2, is preferably composed of a thick compressible soft mass 2*, of felted or loosely connected fibres, such as wood fibres, providing a maximum percentage of internal dead air spaces. This thick soft mass 2, is covered at its side faces by strong paper sheets 2 coated at their inner faces by waterproofing adhesive 2, such as bitumen, asphalt or other suitable ma terial, applied in liquid form, whereby these facing sheets are caused to adhere to the fibrous mass 2 The pad 2, is in sheet form and as a unitary article consists of the thick soft insulating fibrous mass adhering to and faced .at both sides by the sheets 2 This thick insulating pad 2, is arranged longitudinally on the main sheet 1, centrally between the side edges thereof, and is long enough to, preferably, form at least one spiral coil with overlapping ends around the inner sheet 3, enclosing the article to be enclosed.

This pad is also longer than the article to be enclosed, preferably, to provide opposite tucksin side portions to fold up and over to cover and enclose the ends of the article to be enclosed, see Figs. 4, 5, 6, 7 and 8.

The outer portion of the inner sheet 3, Fig.

l, rests centrally and longitudinally on the the pad 2, and intermediate its length is per-v manently secured to the inner end portion of the pad, so that the pad is secured to the inner end of the main sheet 1, through the medium of a flexible neck or hinge formed by the. inner end portion of inner sheet 3, while the outer end portion of sheet 3, lies loosely on the pad.

When the wrapper is flattened out, as shown by Fig. 1, the artiole to be wrapped such as container of ice cream A, is placed transversely on the inner end of the inner sheet 3, with sealed or closed cans or receptacles of chilled or frozen brine or other chemicals or cakes of carbon dioxide ice or other refrigerant unit or units B, at one or both ends of such article A.

The wrapper, starting with its inner end (left hand end, Fig. 1), is then rolled longitudinally toward the opposite end thereof, with the article A, and the refrigerant therein. The wrapper is thus rolled or coiled ap proximately to the dotted line C, Fig. 1, and the outer free end of inner sheet 3, is picked up and held to the article overlapping the inner end of said sheet, while the opposite side portions of the main sheet 1, with the pad 2, thereon, are thereupon folded inwardly on the longitudinal fold lines D, Fig. 3 over the central longitudinal portion of the wrapper and the article therein, see Fig. 4, forming the tucked in ends, 6 of the completed bundle, Fig. 8, by completing the rolling or wrapping process as indicated by Fig. 6.

The article and refrigerant, as a unit in the completed bundle, is surrounded circumferentially and at both ends by the insulating pad 2, and the main sheet 1, and in an approximately air tight package that reduces heat exchange to the minimum, and maintains chilled and frozen products in an edible condition for an exceedingly desirable length of time, such as several hours, for carry home purposes. The corners of the inner and outer ends of the main sheet 1, are preferably cut off to provide the tapered ends.

The completely wound Wrapper can be secured in any suitable manner or by any suitable means, although I have attained satis-. factoryresults by the use of adhesive. For instance, adhesive can be applied for this purpose, at 3, on the outer end of the main sheet 1.

The pad 2, preferably occupies an inter mediate portion of the main sheet 1, so that an extended outer end of the main sheet is provided to form an outer layer or layers of the completed package or bundle, Fig. 8, while the inner usually relatively stifi or protective sheet fits tightly around and encloses the container and refrigerant.

The pad 2, is loose and free to render the same self adjusting during the folding operation and to avoid rupture and separationwithin the fibrous mass thereof by relative longitudinal movements of the facing sheets thereof or for other causes. The fibrous mass of the pad 2 can, for example, be formed of balsam wood, which is fluffed wood fibre, and when found necessary or expedient the invention contemplates and includes the sealing or closing of the edges of the pad to prevent the fibrous mass from fiufling or dusting out from between the sheets 2 as for instance by closing the edges of the pad across and between the sheets 2 by suitable strips of paper, such as a paper of the crinkled, so-called, types.

The disclosure hereof is for illustrative and descriptive purposes, and not for purposes of limiting the scope of the invention except as required by the prior state of the art.

What I claim is 1. An insulating wrapper embodying an outer main sheet elongated in length and width, and an inner flexible soft pad that includes a thick fibrous mass layer providing insulation against heat exchange, said pad 1 coupled to the outer sheet and arranged on the inner side thereof, said wrapper adapted to be rolled up enclosing the article and refrigerant and to be tucked in to cover the ends of the space occupied by the article and re 'frigerant, with the insulating pad surrounding said space.

2. A wrapper for forming an insulating carry-home package of refrigerated food product, said wrapper embodying an outside main sheet elongated in width and length, and a relatively short flexible thick insulating pad arranged loosely thereon and having flexible hinge connection therewith.

3. A wrapper adapted to be rolled up from fiat form with and around the article to be refrigerated'and the refrigerant and tucked in to close the ends of the space occupied by said article and refrigerant, to form an insulating refrigerating package; said wrapper embodying an outside main sheet elongated in length and width, and an inside insulating pad including a thick soft fibrous mass covered at both sides by adhering facing sheets.

i. A wrapper adapted to be rolled up from flat form with and around the article to be refrigerated and the refrigerant and tucked in to close the ends of the space occupied by said article and refrigerant, to form an insulating refrigerating package; said wrapper embodying an outside Ina-in sheet and an inside insulating pad including a thick soft fibrous mass covered at both sides by adherin facing sheets, said facing sheets having adherin waterproofing coatings on their inner surfaces, said mass embodying loosely meshed or felted vegetable fibres.

5. A wrapper adapted to be rolled up from flat form with and around the article tobe refrigerated and the refrigerant and tucked in to close the ends of the space occupied by said article and refrigerant, to form aninsulating refrigerating package said wrapper embodying an outside main sheet elongated in length and width, a relatively short and narrow inner sheet at one end secured to the inner end of the outer sheet and otherwise free therefrom; and a thick flexible insulating pad loosely resting on the outer sheetand at one end portion secured to said inner sheet intermediate the length thereof.

Signed at Kennett Square, county of Chester, Pennsylvania, this 6 day of July, 1928.

GEO. B. SGARLETT. 

